Foundation Waterproofing

Foundation waterproofing is necessary to keep a basement or crawl space dry, especially if you plan to use your basement as a living space. Open areas beneath a home, such as a crawlspace or basement have high moisture content which causes mold to grow on organic materials like wood, fabric, paper or latex paint. When mold grows, it will not only destroy those materials but also fills the air with hazardous mold spores.

Waterproofing Techniques

Exterior Technique

Exterior foundation waterproofing involves applying an impermeable membrane barrier to the exterior of a foundation. The best time to use this technique is during new construction when freshly built foundation walls are exposed. Once the foundation walls are covered with dirt, installing an exterior waterproof coating or membrane becomes prohibitively expensive and much more disruptive if the house is occupied.

Interior Technique

Interior foundation waterproofing involves applying a special coating (waterproof paint) to the inside walls of a foundation. Although this technique is less disruptive and can be done at any time post construction, it rarely works if the surrounding soils stay wet. With significant hydrostatic (water) pressure against foundation walls, moisture will eventually seep through causing the special coating to bubble, peel and leak.

The French Drain Technique

The French drain takes a different approach to foundation waterproofing. Instead of fighting back a large, high-pressure volume of water, this method uses an interior drain and a sump pump to harness the water pressure. Installed inside your foundation walls, this drainage system captures water and directs it to a sump pump before it reaches the basement or crawl space floor. When the water reaches a preset level in the sump pit, it is then ejected to exterior drainage.

Get Started Today

It’s crucial to take care of unexpected leaks in your basement or crawlspace right away. Water can damage walls and floors, destroy carpeting, ruin furniture and eventually lead to mold. With the advanced sump pump technology of the French Drain system, Foundation Technology is able to effectively waterproof your basement.